Primobolan® increases nitrogen retention which in turn improves protein synthesis in muscle tissue. This allows an increase in anabolic activity and creates an environment that allows your body to build muscle at a much faster rate. In addition, Primobolan® is an excellent option to help preserve lean muscle tissue, even during times of heavy training and physical stress. Clearly, this is an ideal product to use during a “cutting phase” of training as it will allow your body a greater opportunity to retain existing muscle mass. All of this allows an avoidance of a potential catabolic state by having a strong affinity for the binding of the androgen receptors and working alongside other “cutting” prohormones during a leaning out process in bodybuilding or other high stress sports.